DTC P3237-769 Short to GND in Battery Thermometer Sensor Connection; DTC P3238-770 Open or Short to B+ in Battery Thermometer Sensor Connection: Description
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
The battery thermometer sensor detects the battery temperature. With this signal, the HV control ECU reduces the charge current when the battery temperature is high to protect the battery.
DTC DETECTION CONDITION - TROUBLE AREA CHART
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3237 | 769 | GND short in battery thermometer sensor signal circuit |
|
| P3238 | 770 | Open or +B short in battery thermometer sensor signal circuit |
|